Spin-propelled jet pig

Abstract

The present invention provides a self-spinning jet pipe cleaner, comprising a pipe body, a guide plate, a steel brush disc, a jet disc, at least one front and rear sealing leather cup, front and rear clamping flanges, a guide flange and at least three elastic guide devices; the guide plate cover is arranged at the front end of the pipe body; the steel brush disc, the jet disc, the front sealing leather cup and the front clamping flange are sequentially sleeved and fixed on the outer peripheral surface of the front end of the pipe body; the rear clamping flange, the rear sealing leather cup and the guide flange are sequentially sleeved on the outer peripheral surface of the rear end of the pipe body; the at least three elastic guide devices are uniformly installed on the outer peripheral surface of the pipe body between the front and rear clamping flanges along the circumferential direction, and the rolling guide direction of the guide roller of the elastic guide device forms a guide angle with the axial direction of the pipe body. Accordingly, the pipe cleaner can rotate itself while traveling in the pipeline to prompt the steel brush on the steel brush disc to clean the pipe wall deposits more efficiently, so that the pipe cleaner has the dual functions of strong pipe wall cleaning and jetting.

Description

Technical Field

[0001] The invention relates to a pipe cleaner for cleaning sediments in a natural gas pipeline, and in particular to a self-spinning jet pipe cleaner which can rotate itself during traveling in the pipeline. Background Art

[0002] Natural gas gathering and transmission pipelines or long-distance transmission pipelines will inevitably experience physical or chemical reactions during the natural gas transportation process due to the different transportation process options and gas quality treatment levels, resulting in the generation of deposits such as condensate, oil, chemical residues, dust, etc. in the pipelines, which will cause the pipe wall to corrode and form iron sulfide and iron oxide, further increasing the deposits in the pipeline, resulting in reduced pipeline transportation efficiency, increased energy consumption, and risks to the safe operation of the pipeline.

[0003] Regular cleaning of natural gas transmission pipelines is an important part of the daily production activities of pipeline companies, and it is also a part with great safety risks. In the case of large undulations in the pipeline terrain, large amounts of sediment in the pipeline, and complex sedimentation forms, the pipe cleaner is often damaged or blocked. When the pipe cleaner is damaged or blocked, it can only be replaced or unblocked by cutting the pipe, which causes great operating costs and great hidden dangers for pipeline repair. In addition, in the comprehensive implementation of pipeline integrity management, internal inspection and evaluation of pipelines is a key link. Internal inspection activities have relatively strict requirements on the pipeline environment. Before the internal inspection activities, it is necessary to perform multiple rounds of combined cleaning operations of multiple types of pipe cleaners on the pipeline to improve the cleanliness of the pipeline and meet the requirements of internal inspection of the pipeline. In general, pipe cleaning operation is a periodic and necessary operation in the process of oil and gas pipeline transportation. The easy-to-wear characteristics of pipe cleaners make the cost of pipe cleaning operation high, and there are great safety risks in the implementation of pipe cleaning.

[0004] At present, the front and rear ends of the traditional type of pipe cleaner are sealed and equipped with steel brushes. The pressure difference formed by the conveying medium before and after the pipe cleaner is mainly used to push the pipe cleaner to move in the pipeline to clean the deposits on the front end of the pipe cleaner and the pipe wall. According to the different sealing forms with the pipeline, the traditional pipe cleaner can be divided into spherical pipe cleaners, leather cup-shaped pipe cleaners, straight plate-shaped pipe cleaners, etc. The structure of the traditional pipe cleaner is simple and easy to process, but there are also major problems in the application process. The front and rear of the pipe cleaning process are sealed, and the change of the pressure difference before and after the pipe cleaner makes it difficult to control its running speed, resulting in increased friction with the pipeline, and it is difficult to ensure the cleaning effect; it is very easy to cause sediment accumulation, which is easy to block the pipeline and lead to pipe cleaning failure; due to the limited cleaning effect of a single pipe cleaner, it is usually necessary to combine multiple pipe cleaners for pipeline cleaning operations. This operation process is cumbersome, the cleaning cost is high and the efficiency is not high. In view of the limitations of traditional types of pipe cleaners, jet pipe cleaners have attracted the attention of some scholars and institutions at home and abroad. The jet-type pipe cleaner runs a jet channel through the pipe cleaner, and relies on the driving pressure of the conveying medium at the rear end of the pipe cleaner to form a high-speed jet to efficiently clean the deposits on the pipeline wall and change the flow pattern of the deposits at the front end of the pipe cleaner to prevent the accumulation of deposits at the front end of the pipe cleaner. The jet-type pipe cleaner is mainly developed for the cleaning of natural gas liquid accumulation pipelines, especially for large drop and undulating liquid accumulation pipelines, it has a good application prospect. However, the jet-type pipe cleaner is not suitable for cleaning pipelines with solid deposits and dense pipe wall attachments formed by corrosion as the main deposits. The jet-type pipe cleaner equipped with a steel brush disc often has serious local damage to the steel brush disc and other components due to uneven wear when cleaning solid deposits and dense pipe wall attachments, resulting in damage to the pipe cleaner and blocking of the pipeline from time to time.

[0005] Therefore, how to design a pipe cleaner that has both the dual functions of strong pipe wall cleaning and jetting, avoids uneven wear of components, and is suitable for cleaning operations of pipe wall deposits with various attachment forms has become one of the important issues to be urgently solved in this field. Summary of the invention

[0006] The technical problem to be solved by the present technical scheme is how to provide a pipe cleaner which is suitable for cleaning pipe wall deposits in various attachment forms, has the dual functions of strong pipe wall cleaning and jet, and can make the consumable parts such as steel brushes and airtightness evenly contact with the pipe wall during the cleaning process.

[0007] In order to solve the above technical problems, the present technical scheme provides a spin-propelled jet pipe cleaner, which includes: a pipe body, a guide plate, a steel brush disc, a jet disc, at least one front sealing leather cup, at least one rear sealing leather cup, a front clamping flange, a rear clamping flange, a guide flange and at least three elastic guide devices; wherein, the guide plate cover is fixed to the front port of the pipe body; the steel brush disc, the jet disc, at least one front sealing leather cup and the front clamping flange are sequentially sleeved on the outer circumferential surface of the front end portion of the pipe body, and the steel brush disc, the jet disc and at least one front sealing leather cup are clamped and fixed between the guide plate and the front clamping flange; the rear clamping flange, at least one rear sealing leather cup and the guide flange are sequentially sleeved on the outer circumferential surface of the rear end portion of the pipe body, and the at least one rear sealing leather cup is clamped and fixed between the rear clamping flange and the guide flange; the at least three elastic guide devices are evenly installed along the circumferential direction on the outer circumferential surface of the pipe body between the front clamping flange and the rear clamping flange, and the rolling guide directions of the guide rollers of the at least three elastic guide devices form a guide angle with the axial direction of the pipe body. Accordingly, when the self-spinning jet pipe cleaner of the present technical solution is pushed forward by the conveying medium, it will rotate as a whole along the direction of the guide angle under the rolling guidance of the guide rollers of the at least three elastic guide devices, thereby driving the steel brush disc to rotate to effectively clean the dense attachments on the pipe wall; in addition, the jet ejected by the jet disc can carry the sediments and attachments cleaned by the steel brush in time, and promote the fluidization of the deposits in front of the pipe cleaner, thereby reducing the steel brush load and the travel resistance of the pipe cleaner, and reducing the risk of blockage of the pipe cleaner; in this way, the pipe cleaner has the dual functions of strong cleaning of the pipe wall and jet, and makes the pipe cleaner suitable for the removal of pipe wall deposits with various attachment forms, and the pipe cleaner is in an overall rotating state during the travel process, so that the steel brush, airtight (such as sealing leather cup) and other consumable parts are evenly worn, reducing the risk of damage to the pipe cleaner, extending the service life of the pipe cleaner, further improving the working efficiency of the pipe cleaner and reducing its operating cost.

[0008] As another implementation of the present technical solution, the elastic guide device is composed of a base, two support rods, a guide roller, a telescopic rod, a sleeve and a coil spring; wherein the base is a strip-shaped body, and the base is installed on the outer peripheral surface of the tube body with its long side direction and the axial direction of the tube body forming the guide angle; the projection directions of the two support rods are parallel to the long side direction of the base, the two support rods are spaced from each other and the ends of the two support rods close to the front clamping flange are hinged to the ends of the base close to the front clamping flange, and the ends of the two support rods away from the front clamping flange are connected by a rotating shaft. The guide roller is connected to the guide roller so that the rolling guide direction of the guide roller is parallel to the long side direction of the base; a fixed rod is connected between the two bracket rods near the guide roller, and one end of the telescopic rod is hinged on the fixed rod; the closed end of the sleeve is hinged to the end of the base away from the front clamping flange; the part of the telescopic rod near its hinge and the part of the sleeve near its hinge are both convexly provided with a stopper; the spiral spring is sleeved on the sleeve, and the other end of the telescopic rod is inserted into the sleeve through the open end of the sleeve, and the two ends of the spiral spring are respectively stopped by the clamping part of the telescopic rod and the clamping part of the sleeve. In this way, by making the overall direction of the elastic guide device and the axial direction of the pipe body present the guide angle structure, the pipe cleaner can rotate during travel under the rolling guide action of the guide roller of the elastic guide device.

[0009] As another implementation of the technical solution, the elastic guide device is composed of a base, a roller bracket, a guide roller, a telescopic rod, a sleeve and a coil spring; wherein the base is a strip-shaped body, and the base is installed on the outer peripheral surface of the tube body with its long side direction parallel to the axial direction of the tube body; the roller bracket is composed of a straight section and a bent section, the straight section includes two straight rods, the projection directions of the two straight rods are parallel to the axial direction of the tube body, the two straight rods are spaced from each other and the ends of the two straight rods close to the front clamping flange are hinged to the ends of the base close to the front clamping flange, the ends of the two straight rods away from the front clamping flange are bent and extended in the same direction to form the bent section, and the bent section includes a long rod and a short rod, the long rod and The projection direction of the short rod forms the guide angle with the axial direction of the tube body, and a guide roller is installed between the long rod and the short rod through a rotating shaft so that the rolling guide direction of the guide roller forms the guide angle with the axial direction of the tube body; a fixed rod is connected between the two straight rods near the bending section, and one end of the telescopic rod is hinged on the fixed rod; the closed end of the sleeve is hinged to the end of the base away from the front clamping flange; the part of the telescopic rod near its hinge and the part of the sleeve near its hinge are both convexly provided with a stopper; the spiral spring is sleeved on the sleeve, and the other end of the telescopic rod is inserted into the sleeve through the open end of the sleeve, and the two ends of the spiral spring are respectively stopped by the clamping part of the telescopic rod and the clamping part of the sleeve. In this way, the structure of the base of the elastic guide device can be simplified, and the production difficulty and cost can be reduced; in addition, the installation area of ​​the base on the outer peripheral surface of the tube body can be reduced, so that more elastic guide devices can be arranged on the outer peripheral surface of the tube body to increase the stability of the pipe cleaner rotating during travel.

[0010] As another implementation of the technical solution, the elastic guide device is composed of a base, a roller bracket, a guide roller, a telescopic rod, a sleeve and a coil spring; wherein the base is a strip-shaped body, and the base is installed on the outer peripheral surface of the tube body with its long side direction parallel to the axial direction of the tube body; the roller bracket is composed of a straight section and an angle adjustment part, the straight section includes two straight rods, the projection directions of the two straight rods are parallel to the axial direction of the tube body, the two straight rods are spaced from each other and the ends of the two straight rods close to the front clamping flange are hinged to the end of the base close to the front clamping flange, and the ends of the two straight rods away from the front clamping flange are connected The angle adjustment part; the angle adjustment part is composed of an extension plate, an adjustment base, an adjustment cap, a connecting rod and a roller seat, and the extension plate is formed by connecting and extending the ends of the two straight rods away from the front clamping flange. The adjustment base is cylindrical and formed on the upper side of the extension plate. The adjustment base is uniformly formed with several ridges parallel to the axial direction of the adjustment base on its outer circumferential surface along the circumferential direction, and the center of the upper end surface of the adjustment base is concave to form a screw hole with an internal thread. The adjustment cap is in the shape of a tube and one end of it is a closed end and the other end is an open end. The inner circumferential surface of the adjustment cap is formed with several grooves along the circumferential direction corresponding to the several ridges of the adjustment base. The closed end of the adjusting cap is provided with a through hole at the center corresponding to the screw hole of the adjusting base. One end of the connecting rod is connected to the outer peripheral surface of the adjusting cap. The roller seat is composed of a bottom rod and two side rods. The two side rods are connected to the two ends of the bottom rod in parallel. The other end of the connecting rod is connected to the middle of the bottom rod. A guide roller is installed between the two side rods through a rotating shaft. The adjusting cap is sleeved on the adjusting base and a through hole is penetrated by a bolt and screwed and fastened in the screw hole to combine and fix the adjusting cap with the adjusting base, so that the rolling guide direction of the guide roller forms the guide angle with the axial direction of the tube body. In addition, by aligning the groove of the adjusting cap with the adjusting base The convex edges of the seat are engaged in different corresponding ways, so as to adjust the angle of the guide angle and the deflection direction of the guide roller; a fixing rod is connected between the parts of the two straight rods close to the angle adjustment part, and one end of the telescopic rod is hinged on the fixing rod; the closed end of the sleeve is hinged to the end of the base away from the front clamping flange; the parts of the telescopic rod close to its hinge and the parts of the sleeve close to its hinge are both convexly provided with a stopper; the coil spring is sleeved on the sleeve, and the other end of the telescopic rod is inserted into the sleeve through the open end of the sleeve, and the two ends of the coil spring are respectively stopped by the clamping part of the telescopic rod and the clamping part of the sleeve. Therefore, by adjusting the rolling guide direction of the guide roller through the angle adjustment part, the size of the guide angle can be flexibly changed, thereby realizing the adjustment of the rotation speed of the pipe cleaner during the movement, and does not affect the stability of the overall structure of the pipe cleaner; in addition, the angle adjustment part can also adjust the deflection direction of the guide roller, that is, deflection to the left or to the right, so that the pipe cleaner can rotate to the left or to the right during the movement of different pipe sections with the sending and receiving ball barrel, thereby preventing the steel brush on the steel brush disc from being deformed to one side due to the fact that it can only clean on one side, thereby reducing the cleaning efficiency.

[0011] As another implementation of the technical solution, more than three mounting parts are evenly arranged along the circumferential direction on the outer peripheral surface of the pipe body between the front clamping flange and the rear clamping flange, and a coupling part is provided on the base of the elastic guide device. The number of elastic guide devices installed can be adjusted by combining or disassembling the mounting part and the coupling part. In this way, the number of elastic guide devices installed can be flexibly adjusted according to the actual working conditions of the pipeline, such as undulating sections or bending sections. More elastic guide devices will increase the stability of the pig's travel and rotation, but at the same time will also increase the load of the pig and reduce its travel speed.

[0012] As another implementation of the technical solution, the jet disk has several jet air channels inside that are connected to the inside of the pipe body and are evenly distributed in a radial shape, and several jet holes that are connected to the jet air channels are opened on the outer periphery of the jet disk. In this way, the conveying medium can be evenly sprayed toward the pipe wall through the jet air channels and jet holes of the jet disk, so that the pipe cleaner can carry the sediments and attachments cleaned by the steel brush in time, and promote the fluidization of the deposits in front of the pipe cleaner, thereby reducing the load of the steel brush and the travel resistance of the pipe cleaner.

[0013] As another implementation of the technical solution, a plurality of through holes communicating with the interior of the tube body are provided on the tube wall of the tube body with the jet disk in the circumferential direction, and an annular air groove is provided on the inner circumference of the jet disk in the circumferential direction, and the annular air groove is communicated with the plurality of jet air channels, and when the jet disk is sleeved on the outer circumferential surface of the front end of the tube body, the through holes, the annular air groove, the jet air channel and the jet hole form a jet channel for conveying the medium. In this way, it can be ensured that the conveying medium is evenly conveyed to each jet air channel through the annular air groove, thereby ensuring the uniformity of the jet injection.

[0014] As another implementation of the technical solution, the jet airway is straight or has an arc, and the cross-sectional area of ​​the jet airway gradually decreases from the annular air groove to the jet hole. In this way, the conveying medium can be sprayed to the pipe wall straightly or at a certain angle through the jet hole, and the structure with the gradually decreasing cross-sectional area of ​​the jet airway can enhance the jet force of the jet hole for the conveying medium.

[0015] As another implementation of the technical solution, the diameters of the front sealing cup, the rear sealing cup and the steel brush disc are the same and larger than the diameters of the guide plate, the jet disc, the front clamping flange, the rear clamping flange and the guide flange. In this way, the consumable parts such as the airtight parts and the cleaning parts can contact the pipe wall, while the non-consumable parts are prevented from contacting the pipe wall, thereby increasing the service life of the overall structure of the pig.

[0016] As another implementation of the technical solution, it also includes: a traction anti-collision head, which is fixedly coupled to the front side of the guide plate, and the front end of the traction anti-collision head has a traction part. In this way, the traction anti-collision head can play a certain role in pushing the sediment accumulated in front of the pig during its movement, and the traction part facilitates the recovery operation of the pig after the pig has completed the pigging operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side cross-sectional view of a first embodiment of the spin-propelled jet pipe cleaner of the present invention;

[0018] Figure 2 It is a schematic diagram of the upper side of the first embodiment of the spin-propelled jet pipe cleaner of the present invention;

[0019] Figure 3 It is a schematic diagram of the elastic guide device in the first embodiment of the self-spinning jet pipe cleaning device of the present invention;

[0020] Figure 4 is a schematic cross-sectional view of the jet disk of the present invention;

[0021] Figure 5 It is a side cross-sectional view of the upper half of the jet disk in the present invention;

[0022] Figure 6 It is a schematic diagram of the upper side of the second embodiment of the spin-propelled jet pipe cleaner of the present invention;

[0023] Figure 7 It is a schematic diagram of a roller support in the second embodiment of the spin-propelled jet pipe cleaning device of the present invention;

[0024] Figure 8 It is a schematic diagram of a roller support in the third embodiment of the spin-propelled jet pipe cleaning device of the present invention;

[0025] Fig. 9 It is a schematic diagram of a disassembled part of the roller bracket in the third embodiment of the present invention;

[0026] Fig.10 It is a schematic diagram of another exploded part of the roller bracket in the third embodiment of the present invention.

[0027] Explanation of symbols in the accompanying drawings:

[0028] 1 tube body; 11 through hole; 2 guide plate; 3 steel brush plate; 31 steel brush; 4 jet plate; 41 jet air channel; 42 jet hole; 43 annular air groove; 5 front sealing leather cup; 6 rear sealing leather cup; 7 front clamping flange; 8 rear clamping flange; 9, 9' elastic guide device; 91, 91' base; 92 support rod; 931, 931' straight rod; 932 long rod; 933 short rod; 932' angle adjustment part; 933' extension plate; 934' adjustment base; 9341' convex edge; 9342' screw hole; 935' adjustment cap; 9351' groove; 9352' through hole; 936' connecting rod; 937' roller seat; 9371' bottom rod; 9372' side rod; 94, 94', 94'' fixing rod; 95 Guide roller; 96 telescopic rod; 97 sleeve; 98 coil spring; 10 guide flange; 12 traction anti-collision head; 121 traction part; α guide angle. DETAILED DESCRIPTION

[0029] The detailed description and technical contents of the present invention are described as follows with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

[0030] like Figures 1 to 3As shown, it is a schematic diagram of the first embodiment of the self-spinning jet pipe cleaner of the present invention. The self-spinning jet pipe cleaner of the first embodiment (hereinafter referred to as the pipe cleaner) comprises: a pipe body 1, a guide plate 2, a steel brush plate 3, a jet plate 4, at least one front sealing leather cup 5, at least one rear sealing leather cup 6, a front clamping flange 7, a rear clamping flange 8, a guide flange 10 and at least three elastic guide devices 9. Among them, the bowl mouths of the front sealing leather cup 5 and the rear sealing leather cup 6 are both facing the rear of the pipe cleaner, and the front and rear sealing leather cups 5 and 6 can be made of rubber material, and the pipe body 1 can be made of steel pipe or chloroprene rubber or high-strength polyurethane and other materials, so that the main components of the pipe cleaner can have the characteristics of wear resistance, corrosion resistance, high toughness and certain deformation ability, so as to adapt to traveling in a pipeline with a certain undulation and turning angle. The guide plate 2 is in the shape of a circular plate and is made of metal material. Its cover is fixed to the front end of the pipe body 1 to push the sediment in front when the pipe cleaner travels. The steel brush disc 3, the jet disc 4, at least one front sealing cup 5 and the front clamping flange 7 are sequentially sleeved on the outer peripheral surface of the front end of the pipe body 1, and the steel brush disc 3, the jet disc 4 and at least one front sealing cup 5 are clamped and fixed between the guide plate 2 and the front clamping flange 7. The disc edge of the steel brush disc 3 has a steel brush 31 to clean the attachments on the pipe wall when the pipe cleaner is moving. The rear clamping flange 8, at least one rear sealing cup 6 and the guide flange 10 are sequentially sleeved on the outer peripheral surface of the rear end of the pipe body 1, and the at least one rear sealing cup 6 is clamped and fixed between the rear clamping flange 8 and the guide flange 10. The at least three elastic guide devices 9 are evenly installed along the circumferential direction on the outer peripheral surface of the pipe body 1 between the front clamping flange 7 and the rear clamping flange 8, and the rolling guide direction of the guide rollers 95 of the at least three elastic guide devices 9 forms a guide angle α with the axial direction of the pipe body 1, so that the pipe cleaner rotates along the rolling guide direction of the guide rollers 95 when being pushed by the conveying medium, thereby driving the steel brush disc 3 to rotate to enhance the cleaning effect of the steel brush 31 on the attachments on the pipe wall.

[0031] More specifically, the elastic guide device 9 of the pipe cleaner in this embodiment is composed of a base 91, two support rods 92, a guide roller 95, a telescopic rod 96, a sleeve 97 and a coil spring 98. The base 91 may be a strip-shaped body with a rectangular upper end surface, and the base 91 is installed on the outer peripheral surface of the pipe body 1 with its long side direction and the axial direction of the pipe body 1 forming the guide angle α. The projection directions of the two support rods 92 are parallel to the long side direction of the base 91, the two support rods 92 are spaced apart from each other, and the ends of the two support rods 92 close to the front clamping flange 7 are hinged to the ends of the base 91 close to the front clamping flange 7, and the guide roller 95 is installed between the ends of the two support rods 92 away from the front clamping flange 7 through a rotating shaft, so that the rolling guide direction of the guide roller 95 is parallel to the long side direction of the base. A fixing rod 94 is connected between the two support rods 92 near the guide roller 95, and one end of the telescopic rod 96 is hinged on the fixing rod 94. The closed end of the sleeve 97 is hinged to the end of the base 91 away from the front clamping flange 7. The part of the telescopic rod 96 near its hinge and the part of the sleeve 97 near its hinge are both convexly provided with a stopper (not shown in the figure), and the stopper can be a protrusion or an annular convex ridge. The coil spring 98 is sleeved on the outside of the sleeve 97, and the other end of the telescopic rod 96 penetrates into the sleeve 97 through the open end of the sleeve 97, and the two ends of the coil spring 98 are respectively stopped at the clamping part of the telescopic rod 96 and the clamping part of the sleeve 97, so that the telescopic rod 96, the sleeve 97 and the coil spring 98 can form an elastic buffer structure, so that the pipe cleaner can adapt to different pipeline working conditions, such as pipeline undulating sections or diameter-changing sections. The overall direction of the elastic guide device 9 of this embodiment forms a guide angle α with the axial direction of the pipe body 1, so that the pipe cleaner rotates during movement under the rolling guidance of the guide rollers 95 of the elastic guide device 9.

[0032] In this embodiment, combined with Figure 4 and 5As shown, the jet disk 4 has several jet channels 41 in radial uniform distribution, which are in communication with the inside of the tube body 1, and several jet holes 42 in communication with the jet channels 41 are provided on the outer periphery of the jet disk 4. Several through holes 11 in communication with the inside of the tube body 1 are provided along the circumferential direction on the tube wall where the jet disk 4 is installed, and an annular air groove 43 is provided along the circumferential direction on the inner periphery of the jet disk 4, and the annular air groove 43 is in communication with the several jet channels 41. When the jet disk 4 is sleeved on the outer periphery of the front end of the tube body 1, the through holes 11, the annular air groove 43, the jet channels 41 and the jet holes 42 form a jet channel for conveying the medium, thereby ensuring that the conveying medium is evenly conveyed to each jet channel 41 through the annular air groove 43, and the uniformity of the jet injection is ensured. In addition, the jet air channel 41 can be straight or curved, and the cross-sectional area of ​​the jet air channel 41 is gradually reduced from the annular air groove 43 to the jet hole 42, so that the conveying medium can be sprayed onto the pipe wall directly or at a certain angle through the jet hole 42, and the conveying medium is sprayed onto the pipe wall at a certain angle to reduce the reaction force of the jet flow on the pipe wall (i.e., reduce the jet flow rate that rebounds back) to make the jet effect better; and the structure with a gradually reduced cross-sectional area of ​​the jet air channel 41 can enhance the jet force of the jet hole 42 for the conveying medium. The pipe cleaner of this embodiment can uniformly spray the conveying medium onto the pipe wall through the several jet air channels 41 and the jet holes 42 of the jet disk 4, so that the pipe cleaner can carry the sediment and attachments cleaned by the steel brush 31 in time, and promote the fluidization of the deposits in front of the pipe cleaner, thereby reducing the load of the steel brush 31 and the travel resistance of the pipe cleaner.

[0033] In this embodiment, Figure 1 As shown, the diameters of the front sealing leather cup 5, the rear sealing leather cup 6 and the steel brush plate 3 can be substantially the same, that is, equivalent to the inner diameter of the pipeline, and larger than the diameters of the guide plate 2, the jet disk 4, the front clamping flange 7, the rear clamping flange 8 and the guide flange 10, so that the consumable parts such as the airtight parts and the cleaning parts can be in contact with the pipe wall, while the non-consumable parts can be prevented from contacting with the pipe wall, thereby improving the service life of the overall structure of the pipe cleaner.

[0034] In this embodiment, Figure 1 As shown, the pipe cleaner further includes a traction anti-collision head 12, which is fixedly coupled to the front side of the guide plate 2, and the front end of the traction anti-collision head 12 has a traction part 121, such as a hook, etc. The traction anti-collision head 12 can play a certain role in pushing the sediment accumulated in front of the pipe cleaner during the movement of the pipe cleaner, and the traction part 121 facilitates the recovery operation of the pipe cleaner after the pipe cleaning operation is completed.

[0035] In addition, in order to facilitate the installation and removal of components and to facilitate the maintenance and replacement of consumable components, in this embodiment, the front clamping flange 7 and the rear clamping flange 8 can be fixedly combined on the outer peripheral surface of the tube body 1, and the guide plate 2, the steel brush plate 3, the jet plate 4, the front sealing cup 5, the rear sealing cup 6 and the guide flange 10 can be fixed by passing through a plurality of bolts (not shown in the figure) and fastened to the front clamping flange 7 or the rear clamping flange 8. Specifically, through holes (not shown in the figure) are correspondingly opened on the front and rear clamping flanges, the guide plate, the steel brush plate, the jet plate, the front and rear sealing cups and the guide flange, and the front and rear clamping flanges are fixedly combined on the outer peripheral surface of the tube body, and the remaining components are installed on the tube body, and the corresponding through holes are passed through by long bolts and screwed and fastened with nuts to fix the above components to the front and rear of the tube body, thereby realizing flexible installation and removal of the components.

[0036] like Figure 6 and 7 , which is a schematic diagram of the second embodiment of the self-spinning jet pipe cleaner of the present invention. The structure of the second embodiment is substantially the same as that of the first embodiment, and the only difference is the structure of the elastic guide device, specifically: the elastic guide device 9' in the second embodiment is composed of a base 91', a roller bracket, a guide roller 95, a telescopic rod 96, a sleeve 97 and a coil spring 98. Among them, the base 91' is a strip body and the upper end surface is rectangular. The base 91' is installed on the outer peripheral surface of the pipe body 1 with its long side direction parallel to the axial direction of the pipe body 1. The roller bracket is composed of a straight section and a bent section, the straight section includes two straight rods 931, the projection directions of the two straight rods 931 are parallel to the axial direction of the tube body 1, the two straight rods 931 are spaced from each other, and the ends of the two straight rods 931 close to the front clamping flange 7 are hinged to the ends of the base 91' close to the front clamping flange 7, the ends of the two straight rods 931 away from the front clamping flange 7 are bent and extended in the same direction to form the bent section, and the bent section includes a long rod 932 and a short rod 933, the projection directions of the long rod 932 and the short rod 933 form the guide angle α with the axial direction of the tube body 1, and a guide roller 95 is installed between the long rod 932 and the short rod 933 through a rotating shaft so that the rolling guide direction of the guide roller 95 forms the guide angle α with the axial direction of the tube body 1. A fixing rod 94' is connected between the two straight rods 931 near the bending section, and one end of the telescopic rod 96 is hinged to the fixing rod 94'. The closed end of the sleeve 97 is hinged to the end of the base 91' away from the front clamping flange 7. A stopper is convexly provided at a portion of the telescopic rod 96 near its hinge and at a portion of the sleeve 97 near its hinge. A coil spring 98 is sleeved on the sleeve 97, and the other end of the telescopic rod 96 is inserted into the sleeve 97 through the open end of the sleeve 97, and the two ends of the coil spring 98 are respectively stopped at the clamping portion of the telescopic rod 96 and the clamping portion of the sleeve 97.

[0037] Compared with the first embodiment, the second embodiment simplifies the structure of the elastic guide device base, so that the lower end surface of the base 91' does not need to form an inwardly concave arc surface to adapt to the curvature of the outer peripheral surface of the pipe body 1, thereby limiting the installation angle and the number of installations of the elastic guide device. In the second embodiment, the long side direction of the base 91' is in the same direction as the axial direction of the pipe body 1, thereby reducing the production difficulty and cost of the base 91', and also reducing the installation area of ​​the base 91' on the outer peripheral surface of the pipe body, thereby achieving the effect of arranging more elastic guide devices 9' on the outer peripheral surface of the pipe body to increase the stability of the pig rotating during travel.

[0038] like Figures 8 to 10, which is a schematic diagram of the third embodiment of the self-spinning jet pipe cleaner of the present invention. The structure of the third embodiment is substantially the same as that of the second embodiment, and the only difference is the structure of the roller bracket, specifically: the elastic guide device in the third embodiment is composed of a base, a roller bracket, a guide roller 95, a telescopic rod 96, a sleeve 97 and a coil spring 98. Among them, the base is a strip-shaped body and the upper end face is rectangular. The base is installed on the outer peripheral surface of the pipe body with its long side parallel to the axial direction of the pipe body. The structure of the base in this embodiment is the same as that of the base in the second embodiment, and will not be repeated here. The roller bracket is composed of a straight section and an angle adjustment portion 932', the straight section includes two straight rods 931', the projection directions of the two straight rods 931' are parallel to the axial direction of the tube body, the two straight rods 931' are spaced apart from each other, and the ends of the two straight rods 931' close to the front clamping flange are hinged to the ends of the base close to the front clamping flange, and the ends of the two straight rods 931' away from the front clamping flange are connected to the angle adjustment portion 932'. The angle adjustment portion 932' is composed of an extension plate 933', an adjustment base 934', an adjustment cap 935', a connecting rod 936' and a roller seat 937', and the extension plate 933' is formed by connecting and extending the ends of the two straight rods 931' away from the front clamping flange, and the adjustment base 934' is cylindrical and formed on the upper side of the extension plate 933'. The adjustment base 934' is uniformly formed on its outer circumferential surface along the circumferential direction with a plurality of parallel to the adjustment base 934'. The adjusting cap 935' is in the shape of a tube and one end of the adjusting cap 935' is a closed end and the other end is an open end. The inner circumferential surface of the adjusting cap 935' is formed with a plurality of grooves 9351' corresponding to the plurality of ridges 9341' of the adjusting base along the circumferential direction. The closed end of the adjusting cap 935' is formed with a through hole 9342' at the center corresponding to the screw hole 9342' of the adjusting base 934'. 352', one end of the connecting rod 936' is connected to the outer peripheral surface of the adjusting cap 935', the roller seat 937' is composed of a bottom rod 9371' and two side rods 9372', the two side rods 9372' are parallelly connected to the two ends of the bottom rod 9371', the other end of the connecting rod 936' is connected to the middle of the bottom rod 9371', the guide roller 95 is installed between the two side rods 9372' through a rotating shaft, the adjusting cap 935' is sleeved on the adjusting base 934' and is used to adjust the roller seat 937'. The bolt passes through the through hole 9352' and is screwed and fastened in the screw hole 9342' to fix the adjustment cap 935' and the adjustment base 934' together, so that the guide angle is formed between the rolling guide direction of the guide roller 95 and the axial direction of the tube body; in addition, by making different corresponding engagements between the groove 9351' of the adjustment cap 935' and the convex ridge 9341' of the adjustment base 934', the angle of the guide angle and the deflection direction of the guide roller 95 can be adjusted.A fixing rod 94'' is connected between the two straight rods 931' near the angle adjustment part 932', and one end of the telescopic rod is hinged on the fixing rod. The closed end of the sleeve is hinged to the end of the base away from the front clamping flange. A stopper is convexly provided at a portion of the telescopic rod near its hinge and at a portion of the sleeve near its hinge. The coil spring is sleeved on the sleeve, and the other end of the telescopic rod is inserted into the sleeve through the open end of the sleeve, and the two ends of the coil spring are respectively stopped at the clamping portion of the telescopic rod and the clamping portion of the sleeve.

[0039] Compared with the second embodiment, the pipe cleaner of the third embodiment can adjust the rolling guide direction of the guide roller 95 through the angle adjustment part 932' to flexibly change the size of the guide angle, thereby realizing the adjustment of the rotation speed of the pipe cleaner during the travel process, and does not affect the stability of the overall structure of the pipe cleaner; in addition, the angle adjustment part 932' can also adjust the deflection direction of the guide roller 95, that is, deflect to the left or to the right, so that the pipe cleaner can rotate to the left or to the right during the travel of different pipe sections with the sending and receiving ball barrel, thereby preventing the steel brush on the steel brush disc from deforming to one side due to only being able to clean on one side, thereby reducing the cleaning efficiency. The adjustment of the deflection direction of the guide roller in this embodiment further ensures the uniform wear of the vulnerable parts, thereby further improving the service life of the pipe cleaner.

[0040] In the second and third embodiments of the present invention, since the long side direction of the base of the elastic guide device is the same as the axial direction of the pipe body, more than three mounting parts (not shown in the figure) such as screws perpendicular to the outer peripheral surface of the pipe body and having external threads can be evenly arranged on the outer peripheral surface of the pipe body between the front clamping flange and the rear clamping flange along the circumferential direction, and the base of the elastic guide device can be correspondingly provided with a coupling part (not shown in the figure) such as a through-port. By combining or disassembling the mounting part and the coupling part (such as inserting the screw into the through-port and fastening it with a nut), the number of the elastic guide devices installed can be flexibly adjusted. In a specific implementation, in order to ensure the stability of the installation of the elastic guide device, the number of the screws and the through-ports can be more than two. In this way, the number of the elastic guide devices installed can be flexibly adjusted according to the actual working conditions of the pipeline, such as the undulating section or the bending section. More elastic guide devices will increase the stability of the pig's travel and rotation, but will also increase the load of the pig and reduce its travel speed.

[0041] To sum up, when the self-spinning jet pipe cleaner of the present invention is pushed forward by the conveying medium, it will rotate as a whole along the direction of the guide angle under the rolling guidance of the guide roller of the elastic guide device, thereby driving the steel brush disc to rotate to powerfully clean the dense attachments on the pipe wall; in addition, the jet ejected by the jet disc can carry the sediments and attachments cleaned by the steel brush in time, and promote the fluidization of the deposits in front of the pipe cleaner, thereby reducing the steel brush load and the travel resistance of the pipe cleaner, and reducing the risk of the pipe cleaner being blocked; in this way, the pipe cleaner has the dual effects of powerful pipe wall cleaning and jet, and makes the pipe cleaner suitable for removing pipe wall deposits with various attachment forms, and the pipe cleaner is in an overall rotating state during the travel process, so that the steel brush, airtight (such as sealing leather cup) and other consumable parts are evenly worn, reducing the risk of damage to the pipe cleaner, extending the service life of the pipe cleaner, further improving the working efficiency of the pipe cleaner and reducing its operating cost.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent changes made using the patent concept of the present invention should all fall within the patent protection scope of the present invention.

Claims

1. A spin-propelled jet pipe cleaner, comprising: A tube body, a guide plate, a steel brush disc, a jet disc, at least one front sealing leather cup, at least one rear sealing leather cup, a front clamping flange, a rear clamping flange and a guide flange; the guide plate cover is fixed to the front port of the tube body; the steel brush disc, the jet disc, at least one front sealing leather cup and the front clamping flange are sequentially sleeved on the outer circumference of the front end portion of the tube body, and the steel brush disc, the jet disc and at least one front sealing leather cup are clamped and fixed between the guide plate and the front clamping flange; the rear clamping flange, at least one rear sealing leather cup and the guide flange are sequentially sleeved on the outer circumference of the rear end portion of the tube body, and the at least one rear sealing leather cup is clamped and fixed between the rear clamping flange and the guide flange; it is characterized in that it also includes: at least three elastic guide devices; the at least three elastic guide devices are evenly installed along the circumferential direction at the front clamping flange and The guide rollers of the at least three elastic guide devices are on the outer peripheral surface of the tube body between the rear clamping flanges, and a guide angle is formed between the rolling guide directions of the guide rollers of the at least three elastic guide devices and the axial direction of the tube body; the elastic guide device is composed of a base, a roller bracket, the guide roller, a telescopic rod, a sleeve and a coil spring; the base is a strip-shaped body, and the base is installed on the outer peripheral surface of the tube body with its long side direction parallel to the axial direction of the tube body; the roller bracket is composed of a straight section and an angle adjustment part, the straight section includes two straight rods, the projection directions of the two straight rods are parallel to the axial direction of the tube body, the two straight rods are spaced from each other, and the ends of the two straight rods close to the front clamping flange are hinged to the end of the base close to the front clamping flange, and the ends of the two straight rods away from the front clamping flange are connected to the angle adjustment part;The angle adjustment part is composed of an extension plate, an adjustment base, an adjustment cap, a connecting rod and a roller seat. The extension plate is formed by connecting and extending the ends of the two straight rods away from the front clamping flange. The adjustment base is cylindrical and formed on the upper side of the extension plate. The adjustment base is uniformly formed with several convex ridges parallel to the axial direction of the adjustment base on its outer circumferential surface along the circumferential direction, and the center of the upper end surface of the adjustment base is concave to form a screw hole with an internal thread. The adjustment cap is tubular and one end of which is sealed The adjusting cap has a closed end and the other end is an open end. The inner circumferential surface of the adjusting cap is formed with a plurality of grooves corresponding to the plurality of convex edges of the adjusting base along the circumferential direction. The closed end of the adjusting cap is formed with a through hole at the center corresponding to the screw hole of the adjusting base. One end of the connecting rod is connected to the outer circumferential surface of the adjusting cap. The roller seat is composed of a bottom rod and two side rods. The two side rods are connected in parallel to the two ends of the bottom rod. The other end of the connecting rod is connected to the middle part of the bottom rod. The two side rods are connected by a rotating shaft. The guide roller is sleeved on the adjustment base and a through hole is penetrated by a bolt and screwed and fastened in the screw hole to combine and fix the adjustment cap with the adjustment base, so that the rolling guide direction of the guide roller forms the guide angle with the axial direction of the tube body, and the angle of the guide angle is adjusted by fitting the groove of the adjustment cap with the convex edge of the adjustment base in different corresponding ways; a fixing rod is connected between the two straight rods near the angle adjustment part, and one end of the telescopic rod is hinged on the fixing rod; the closed end of the sleeve is hinged to the end of the base away from the front clamping flange; the part of the telescopic rod near its hinge and the part of the sleeve near its hinge are both convexly provided with a stopper; the coil spring is sleeved on the sleeve, and the other end of the telescopic rod is inserted into the sleeve through the open end of the sleeve, and the two ends of the coil spring are respectively stopped at the clamping part of the telescopic rod and the clamping part of the sleeve. ; 2. The spin-propelled jet pipe cleaner according to claim 1, characterized in that: More than three mounting parts are evenly distributed along the circumferential direction on the outer peripheral surface of the tube body between the front clamping flange and the rear clamping flange, and a coupling part is provided on the base of the elastic guide device. The number of installed elastic guide devices can be adjusted by combining or disassembling the mounting part and the coupling part.

3. The spin-propelled jet pipe cleaner according to claim 1, characterized in that: The interior of the jet disk is provided with a plurality of jet air passages which are communicated with the interior of the tube body and are evenly distributed in a radial shape, and a plurality of jet holes which are communicated with the plurality of jet air passages are opened on the outer periphery of the jet disk.

4. The spin-propelled jet pipe cleaner according to claim 3, characterized in that: A plurality of through holes communicating with the interior of the tube body are circumferentially provided on the tube wall on which the jet disk is installed, and an annular air groove is circumferentially recessed on the inner circumference of the jet disk, and the annular air groove is communicated with the plurality of jet air channels. When the jet disk is sleeved on the outer circumferential surface of the front end portion of the tube body, the through holes, annular air groove, jet air channels and jet holes form a jet channel for conveying a medium.

5. The spin-propelled jet pipe cleaner according to claim 4, characterized in that: The jet air channel is straight or has an arc, and the cross-sectional area of ​​the jet air channel gradually decreases from the annular air groove to the jet hole.

6. The spin-propelled jet pipe cleaner according to claim 1, characterized in that: The diameters of the front sealing leather cup, the rear sealing leather cup and the steel brush disc are the same and are larger than the diameters of the guide plate, the jet disc, the front clamping flange, the rear clamping flange and the guide flange.

7. The spin-propelled jet pipe cleaner according to claim 1, characterized in that: Also includes: A traction anti-collision head is fixedly coupled to the front side of the guide plate, and a traction portion is provided at the front end of the traction anti-collision head.

Images